diff --git a/flax/subs/dolly181 b/flax/subs/dolly181
deleted file mode 100644
--- a/flax/subs/dolly181
+++ /dev/null
@@ -1,9 +0,0 @@
-ramp0-stairs : 1.0
-ramp1 : 1.0
-ramp2 : 1.0
-ramp3 : 1.0
-ramp4 : 1.0
-ramp5 : 1.0
-ramp6 : 1.0
-ramp7 : 1.0
-ramp8 : 1.0